[R-sig-Geo] Plotting points over a grid

2008-03-22 Thread B. Kranstauber
Hi, What I want to do is plot grid and plot points with Z values over them with spplot. I have a SpatialGridDataframe and a SpatialPointsDataframe. The closest i get is: > bla=list("sp.grid", a["var1.pred"]) > spplot(layer["AGOUTIS_DAY"], sp.layout=bla) But then i get a completely black back

Re: [R-sig-Geo] Variogram Plot

2008-03-22 Thread PUJAN RAJ REGMI
Dear all, I think earlier i didn't clear myself. I ahve a data set of 3 colun and 14000 rows in which first and second column is X and Y coordinates and the third column is the value of samples of each coordinates points. Now I am trying to plot semi variogram for the given sample with respect